Combined inductor

Abstract

The utility model discloses a combined inductor, which belongs to the field of inductors and comprises a top cover, a cylinder, a winding wire, pins, a bottom cover and a metal sheet, the cylinder is positioned at the lower end of the top cover, the winding wire is wound on the cylinder, an embedding hole is formed in the hole wall of the lower end of the cylinder, a sleeve is mounted at the embedding hole of the cylinder, and the bottom cover is arranged at the lower end of the sleeve. And elastic embedded blocks matched with the embedded holes are installed at the opening positions of the two sides of the sleeve, a reinforced spring is arranged between the two elastic embedded blocks, an elastic pipe is installed at the center of the sleeve, an extrusion pipe is connected to the opening position of the upper end of the elastic pipe, and the other end of the reinforced spring is installed on the elastic pipe. Limiting connection between the bottom cover and the cylinder is achieved through the elastic pipe, the extrusion pipe, the reinforced spring and the elastic embedded block, limiting connection between the bottom cover and the metal sheet is achieved through the limiting rod and the limiting hole, firm connection among the abutting pipe, the bottom cover and the metal sheet is achieved through the fastening bolt, and due to the fact that the abutting pipe is arranged on the side wall of the winding wire, a certain protection effect is achieved.

Description

Technical Field

[0001] The utility model relates to the field of inductors, in particular to a combined inductor. Background Art

[0002] An inductor is a component that can convert electrical energy into magnetic energy and store it. The structure of an inductor is similar to that of a transformer, but it has only one winding. An inductor has a certain inductance, and it only blocks the change of current. If there is no current flowing through the inductor, it will try to block the current from flowing through it when the circuit is connected; if there is current flowing through the inductor, it will try to maintain the current unchanged when the circuit is disconnected. An inductor is also called a choke, reactor, or dynamic reactor.

[0003] With the progress of the times and the development of science and technology, inductors have been widely used. However, the coil inside the existing inductors on the market will burn out when used for a long time. Since the coil cannot be replaced, only new inductors can be replaced for use, which is very wasteful and has low practicality. During replacement, attention should be paid to quick installation and firm connection. Utility Model Content

[0004] The main purpose of the utility model is to provide a combined inductor, which can effectively solve the problems raised in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A combined inductor comprises a top cover, a cylinder, a wire, a pin, a bottom cover and a metal sheet, wherein the cylinder is located at the lower end of the top cover, and the wire is wound on the cylinder, an embedded hole is opened in the hole wall at the lower end of the cylinder, a sleeve is installed at the embedded hole of the cylinder, and the lower end of the sleeve is the bottom cover, elastic inserts adapted to the embedded holes are installed at the openings on both sides of the sleeve, a reinforced spring is arranged between the two elastic inserts, an elastic tube is installed at the center of the sleeve, and an extrusion tube is connected to the upper end opening of the elastic tube, and the other end of the reinforced spring is installed on the elastic tube;

[0007] The lower edge of the top cover is provided with a tightening tube, and a screw hole is opened at the lower end of the tightening tube, the side wall of the bottom cover is provided with a C-shaped opening, a metal sheet is installed at the lower end of the bottom cover, a limiting rod is installed at the lower edge of the bottom cover, and a limiting hole adapted to the limiting rod is opened on the metal sheet;

[0008] The lower end of the clamping tube is protruding with a notch, and the metal sheet is provided with a docking hole aligned with the C-shaped opening. The wire-wrapped pin is inserted into the C-shaped opening and the docking hole, and the fastening bolts are inserted into the openings and screw holes of the metal sheet to fix the metal sheet, the bottom cover and the clamping tube.

[0009] In the preferred embodiment of the present application, the top cover, the cylinder and the abutting tube are designed as one body, the abutting tube is designed in an elliptical shape, and two screw holes at the lower end of the abutting tube are symmetrically arranged, the fastening bolts are adapted to the screw holes, and the bottom cover, the metal sheet and the top cover are designed in an elliptical shape;

[0010] In the preferred embodiment of the present application, the bottom cover and the sleeve are designed as one piece, and the sleeve is fixed by welding to the elastic insert, and the elastic insert is designed in the shape of a Chinese character "". The elastic tube and the sleeve are fixed by welding;

[0011] In the preferred embodiment of the present application, a triangular hole is formed at the upper end of the elastic tube, and the extrusion tube is inserted into the triangular hole of the elastic tube. A round rod is provided inside the reinforced spring, and the round rod is fixed to the elastic tube and the elastic insert by bolts.

[0012] In the preferred embodiment of the present application, the reinforced spring is welded to the elastic insert and the elastic tube, and the extruded tube is fixed to the cylinder by bolts;

[0013] According to a preferred embodiment of the present application, a rubber gasket is bonded to the outer wall of the elastic insert, and the elastic insert is pressed tightly into the embedding hole by the inner round rod of the reinforced spring.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] In the utility model, the cylinder, the bottom cover and the metal sheet are improved, the elastic tube, the extrusion tube, the reinforced spring and the elastic insert are used between the bottom cover and the cylinder to achieve a limiting connection, the bottom cover and the metal sheet are limited by the limiting rod and the limiting hole, and then the tightening bolts are used to achieve a firm connection between the clamping tube, the bottom cover and the metal sheet. Since the clamping tube is placed on the side wall of the wire winding, it has a certain protective effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is an exploded view of the bottom cover and cylinder of the utility model;

[0018] Figure 3 This is a diagram showing the bottom cover and cylinder of the utility model;

[0019] Figure 4 for Figure 3 The enlarged schematic diagram at A in the middle;

[0020] Figure 5 It is a schematic diagram of the bottom cover, sleeve, elastic tube, reinforced spring and elastic insert of the utility model.

[0021] In the figure: 1. top cover; 2. cylinder; 3. wire winding; 4. pin; 5. tightening tube; 6. notch; 7. embedding hole; 8. bottom cover; 9. metal sheet; 10. limit rod; 11. limit hole; 12. C-shaped mouth; 13. docking hole; 14. screw hole; 15. fastening bolt; 16. sleeve; 17. extrusion tube; 18. elastic tube; 19. reinforced spring; 20. elastic insert. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] like Figure 1 - Figure 5 As shown, a combined inductor comprises a top cover 1, a cylinder 2, a wire 3, a pin 4, a bottom cover 8 and a metal sheet 9, the cylinder 2 is located at the lower end of the top cover 1, the wire 3 is wound on the cylinder 2, an embedded hole 7 is opened in the hole wall of the lower end of the cylinder 2, a sleeve 16 is installed at the embedded hole 7 of the cylinder 2, and the lower end of the sleeve 16 is the bottom cover 8; the top cover 1, the cylinder 2 and the tight tube 5 are designed as a whole, the tight tube 5 is designed in an elliptical shape, the bottom cover 8, the metal sheet 9 and the top cover 1 are designed in an elliptical shape, the wire 3 is wound in the side wall groove of the cylinder 2, and the wire 3 and the pin 4 are designed as a whole;

[0024] Elastic inserts 20 adapted to the embedding holes 7 are installed at the openings on both sides of the sleeve 16, a reinforced spring 19 is provided between the two elastic inserts 20, an elastic tube 18 is installed at the center of the sleeve 16, the bottom cover 8 and the sleeve 16 are designed as one body, the sleeve 16 and the elastic insert 20 are welded and fixed, the elastic insert 20 is designed in a "9" shape, and the elastic tube 18 and the sleeve 16 are welded and fixed; the upper end opening of the elastic tube 18 is connected with an extrusion tube 17, and the other end of the reinforced spring 19 is installed on the elastic tube 18; a triangular hole is provided at the upper end of the elastic tube 18, and the extrusion tube 17 is inserted into the triangular hole of the elastic tube 18, and a round rod is provided inside the reinforced spring 19, and the round rod is fixed to the elastic tube 18 and the elastic insert 20 by bolts; the reinforced spring 19 is welded to the elastic insert 20 and the elastic tube 18, and the extrusion tube 17 is inserted into the triangular hole of the elastic tube 18. The tube 17 is fixed to the cylinder 2 by bolts; the outer wall of the elastic insert 20 is bonded with a rubber gasket, and the elastic insert 20 is pressed against the embedded hole 7 by the inner round rod of the reinforced spring 19; in actual use, since a stud is arranged at the upper end of the extrusion tube 17, the stud is aligned with the threaded hole of the blind hole at the lower end of the cylinder 2, and the rotating extrusion tube 17 can be connected with the cylinder 2, when the sleeve 16 is aligned with the blind hole at the lower end of the cylinder 2, the elastic insert 20 on the side wall of the sleeve 16 is aligned with the embedded hole 7, and when the extrusion tube 17 is aligned with the elastic tube 18 to open a triangular hole, the extrusion tube 17 squeezes the elastic tube 18 to expand it, and the elastic tube 18 drives the reinforced spring 19 and the round rod to move outward during expansion, and presses against the elastic insert 20, and the elastic insert 20 is used to be stuck in the embedded hole 7 of the cylinder 2, so as to achieve a quick installation between the cylinder 2 and the bottom cover 8;

[0025] The lower edge of the top cover 1 is provided with a tightening tube 5, the lower end of which is provided with a screw hole 14, the side wall of the bottom cover 8 is provided with a C-shaped opening 12, the metal sheet 9 is installed at the lower end of the bottom cover 8, a limiting rod 10 is installed at the lower edge of the bottom cover 8, and a limiting hole 11 adapted to the limiting rod 10 is provided on the metal sheet 9; in actual installation, the pin 4 passes through the notch 6, the C-shaped opening 12 passes through the docking hole 13, the tightening tube 5 is directly opposite to the C-shaped opening 12 and abuts against the upper end of the metal sheet 9, and a rubber pad can be bonded and connected at the lower end of the tightening tube 5 to improve the anti-slip performance of this part;

[0026] The lower end of the abutting tube 5 is provided with a notch 6, and the metal sheet 9 is provided with a docking hole 13 aligned with the C-shaped opening 12. The pin 4 of the wire wrap 3 is inserted into the C-shaped opening 12 and the docking hole 13. The fastening bolt 15 is inserted into the opening and screw hole 14 of the metal sheet 9 to fix the metal sheet 9, the bottom cover 8 and the abutting tube 5. The two screw holes 14 at the lower end of the abutting tube 5 are symmetrically arranged, and the fastening bolt 15 is adapted to the screw hole 14. When replacing the wire wrap 3, the bottom cover 8 is removed and the new wire wrap 3 is wound on the cylinder 2 During reinstallation, the sleeve 16 at the upper end of the bottom cover 8 is aligned with the blind hole at the lower end of the cylinder 2. The sleeve 16 squeezes the tube 17 and the elastic tube 18 to make the elastic insert 20 stuck in the embedding hole 7, so that the sleeve 16 and the cylinder 2 can be quickly limited. The metal sheet 9 and the bottom cover 8 limit rod 10 and the limit hole 11 are limited. The round hole is opened at the metal sheet 9 using the fastening bolt 15 to insert the fastening bolt 15, and the fixation between the tube 5, the bottom cover 8 and the metal sheet 9 is achieved by the fastening bolt 15.

[0027] The utility model can realize the side wall open drainage of groundwater and pipeline leakage water in the soil stratum foundation pit in winter. Due to the design of the electric heating belt, the groundwater seepage path of the soil stratum foundation pit can be prevented from being frozen, thereby effectively draining the water, avoiding the frost heave phenomenon of the foundation pit in winter, and effectively preventing groundwater diseases caused by underground pipeline leakage;

[0028] The above are the preferred embodiments of the utility model and the technical principles used therein. For those skilled in the art, without departing from the spirit and scope of the utility model, any obvious changes such as equivalent transformation, simple replacement, etc. based on the technical solution of the utility model shall fall within the protection scope of the utility model.

Claims

1. A combined inductor, comprising a top cover (1), a cylinder (2), a wire winding (3), a pin (4), a bottom cover (8) and a metal sheet (9), wherein the cylinder (2) is located at the lower end of the top cover (1), and the wire winding (3) is wound on the cylinder (2), characterized in that: The lower end hole wall of the cylinder (2) is provided with an embedding hole (7), a sleeve (16) is installed at the embedding hole (7) of the cylinder (2), the lower end of the sleeve (16) is a bottom cover (8), elastic inserts (20) adapted to the embedding hole (7) are installed at the openings on both sides of the sleeve (16), a reinforcing spring (19) is provided between the two elastic inserts (20), an elastic tube (18) is installed at the center of the sleeve (16), and an extrusion tube (17) is connected to the upper end opening of the elastic tube (18), and the other end of the reinforcing spring (19) is installed on the elastic tube (18); The lower edge of the top cover (1) is provided with a tightening tube (5), and the lower end of the tightening tube (5) is provided with a screw hole (14); the side wall of the bottom cover (8) is provided with a C-shaped opening (12); the metal sheet (9) is installed at the lower end of the bottom cover (8); a limiting rod (10) is installed at the lower edge of the bottom cover (8); and a limiting hole (11) adapted to the limiting rod (10) is provided on the metal sheet (9); The lower end of the abutting tube (5) is provided with a notch (6), and the metal sheet (9) is provided with a docking hole (13) aligned with the C-shaped opening (12). The pin (4) of the wire wrap (3) is inserted into the C-shaped opening (12) and the docking hole (13), and the fastening bolt (15) is inserted into the opening and screw hole (14) of the metal sheet (9) to fix the metal sheet (9), the bottom cover (8) and the abutting tube (5).

2. The combined inductor according to claim 1, characterized in that: The top cover (1), the cylinder (2) and the clamping tube (5) are designed as an integrated whole; the clamping tube (5) is designed in an elliptical shape; and two screw holes (14) at the lower end of the clamping tube (5) are symmetrically arranged; the fastening bolts (15) are adapted to the screw holes (14); and the bottom cover (8), the metal sheet (9) and the top cover (1) are designed in an elliptical shape.

3. The combined inductor according to claim 2, characterized in that: The bottom cover (8) and the sleeve (16) are integrally designed, and the sleeve (16) is fixedly welded to the elastic insert (20), and the elastic insert (20) is designed in a "9" shape, and the elastic tube (18) and the sleeve (16) are fixedly welded.

4. The combined inductor according to claim 3, characterized in that: The upper end of the elastic tube (18) is provided with a triangular hole, and the extrusion tube (17) is inserted into the triangular hole of the elastic tube (18). A round rod is provided inside the reinforced spring (19), and the round rod is fixed to the elastic tube (18) and the elastic insert (20) by bolts.

5. The combined inductor according to claim 4, characterized in that: The reinforced spring (19) is welded to the elastic insert (20) and the elastic tube (18), and the extrusion tube (17) is fixed to the cylinder (2) by bolts.

6. The combined inductor according to claim 5, characterized in that: The outer wall of the elastic insert (20) is bonded and connected with a rubber gasket, and the elastic insert (20) is pressed tightly into the embedding hole (7) by the inner round rod of the reinforced spring (19).

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